TIMEFREQUENCY DECISIONDRIVEN MULTIUSER DETECTORS OVER FASTFADING MULTIPATH CHANNELS FOR SYNCHRONOUS DSCDMA SYSTEMS

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Ertuğ Ö., Baykal B., Sayraç Ünal B.

PIMRC 2001, California, Amerika Birleşik Devletleri, 30 Eylül - 03 Ekim 2001, ss.14-18, (Tam Metin Bildiri)

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Basıldığı Şehir: California
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.14-18
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Gazi Üniversitesi Adresli: Hayır

Özet

RAKE meivers suffer degmdation in performance under fast fadirq due to emrs in channel state estimation. The wide-sense stationary un- correlated scatterer channel model lends itself to timeIrequency canonical representation, and provides additional diversity in the frequency &. That is, the joint multipath-Doppler diversity model enables the development of nonlinear decision-driven time-frequency multiuser detectors based on successive interference cancellation and multistage interference cancellation ideas. Simulation results demonstmte that the proposed nonlinear decision-driven time-frequency multiuser detectors promise substantially improved bit-emr-mte performance compared to previously proposed timefrequency multiuser detectors while ezhibiting strong resistance to the near-far effect